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US Patent: 2,064X
Boring guns and pistols with twisted screw auger
Patentee:
Daniel Pettibone - Philadelphia, PA

USPTO Classifications:
74/840

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Feb. 12, 1814

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
The patent drawing was restored after the fire; a copy of the specification surfaced much more recently and a scan is now available from the USPTO website.

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